:root{--bg-primary:#f8fafc;--card-bg:#ffffff;--text-main:#0f172a;--text-muted:#64748b;--accent:#2563eb;--accent-hover:#1d4ed8;--border:#e2e8f0;--success:#10b981;--shadow:0 4px 6px -1px rgb(0 0 0/0.1),0 2px 4px -2px rgb(0 0 0/0.1)}* {box-sizing:border-box;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}body{background-color:var(--bg-primary);color:var(--text-main);min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:1rem;width:100%;overflow-x:hidden}header{width:100%;max-width:800px;display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding:1rem 0}.logo{display:flex;align-items:center;gap:0.5rem;font-size:1.5rem;font-weight:700}.lang-btn{background:var(--card-bg);border:1px solid var(--border);padding:0.5rem 1rem;border-radius:8px;cursor:pointer;font-weight:600;transition:all 0.2s;display:flex;align-items:center;gap:0.5rem}.lang-btn:hover{border-color:var(--accent)}main{width:100%;max-width:800px;background:var(--card-bg);border-radius:16px;padding:2rem;box-shadow:var(--shadow)}.dropzone{border:2px dashed var(--border);border-radius:12px;padding:3rem 1rem;text-align:center;cursor:pointer;transition:all 0.2s;background:var(--bg-primary);display:flex;flex-direction:column;align-items:center;gap:1rem;width:100%}.dropzone:hover,.dropzone.dragover{border-color:var(--accent);background:#eff6ff}.dropzone svg{width:48px;height:48px;color:var(--accent)}.dropzone p{font-size:1.1rem;font-weight:500;padding:0 0.5rem}.dropzone span{font-size:0.875rem;color:var(--text-muted);padding:0 0.5rem}#file-input{display:none}.file-list{margin-top:2rem;display:flex;flex-direction:column;gap:0.75rem;max-height:320px;overflow-y:auto;width:100%;padding-right:4px}.file-list::-webkit-scrollbar{width:6px}.file-list::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.file-item{display:flex;align-items:center;justify-content:space-between;padding:0.75rem 1rem;background:var(--bg-primary);border:1px solid var(--border);border-radius:8px;gap:1rem;width:100%}.file-info{display:flex;align-items:center;gap:0.75rem;overflow:hidden;flex:1}.file-icon{width:32px;height:32px;flex-shrink:0}.file-icon svg{width:100%;height:100%}.file-name{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.file-actions-wrapper{display:flex;align-items:center;gap:1rem;flex-shrink:0}.file-sizes{font-size:0.85rem;color:var(--text-muted);white-space:nowrap;text-align:right;flex-shrink:0}.btn-remove-item{background:transparent;border:none;color:#ef4444;cursor:pointer;padding:6px;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:background 0.2s,color 0.2s}.btn-remove-item:hover{background:#fee2e2;color:#b91c1c}.btn-remove-item svg{width:18px;height:18px}.preview-bar{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:1rem;width:100%}.compression-settings{width:100%;margin-bottom:0.5rem}.radio-tabs{display:flex;flex-direction:row;background:var(--bg-primary);border:1px solid var(--border);padding:4px;border-radius:10px;gap:4px;width:100%}.tab-item{flex:1;text-align:center;cursor:pointer}.tab-item input[type="radio"]{display:none}.tab-item span{display:block;padding:0.75rem 0.5rem;font-weight:600;font-size:0.95rem;color:var(--text-muted);border-radius:7px;transition:all 0.2s ease;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.tab-item input[type="radio"]:checked+span{background:var(--card-bg);color:var(--accent);box-shadow:0 2px 4px rgb(0 0 0/0.05)}.total-info{display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:1.1rem;width:100%}.saved-space{color:var(--success);font-size:0.9rem;text-align:right}.btn-compress{width:100%;background:var(--accent);color:white;border:none;padding:1rem;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background 0.2s;display:flex;justify-content:center;align-items:center;gap:0.5rem}.btn-compress:hover{background:var(--accent-hover)}.btn-compress:disabled{background:var(--border);cursor:not-allowed}@media (max-width:600px){body{padding:0.5rem}header{margin-bottom:1rem;padding:0.5rem 0}.logo{font-size:1.25rem}main{padding:1.25rem;border-radius:12px}.dropzone{padding:2rem 0.5rem}.dropzone p{font-size:1rem}.file-item{flex-direction:column;align-items:flex-start;gap:0.5rem;padding:0.75rem}.file-info{width:100%}.file-actions-wrapper{width:100%;justify-content:space-between;border-top:1px dashed var(--border);padding-top:0.5rem}.file-sizes{text-align:left;width:auto}.total-info{font-size:1rem}}@media (max-width:480px){.radio-tabs{flex-direction:column;padding:6px;gap:6px;border-radius:12px}.tab-item span{padding:0.85rem 0.5rem;font-size:1rem;text-align:center}}